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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
UBIZ0220
UBIZ0220
In Stock
From
$48.84
Connecticut Electric
20
240
UBIZ0230
UBIZ0230
In Stock
From
$44.69
Connecticut Electric
30
240
UBIZ0245
UBIZ0245
In Stock
From
$71.47
Connecticut Electric
45
240
UBIZ0250
UBIZ0250
In Stock
From
$69.96
Connecticut Electric
50
240
UBIZ15
UBIZ15
In Stock
From
$29.02
Zinsco
15
240
UBIZ1515
UBIZ1515
In Stock
From
$60.74
Connecticut Electric
15
240
UBIZ20
UBIZ20
In Stock
From
$31.89
Zinsco
20
240
UBIZ2020
UBIZ2020
In Stock
From
$60.79
Connecticut Electric
20
240
UBIZ2100
UBIZ2100
In Stock
From
$183.49
Zinsco
100
240
UBIZ215
UBIZ215
In Stock
From
$55.14
Connecticut Electric
15
240
UBIZ215B
UBIZ215B
In Stock
From
$55.14
Connecticut Electric
15
240
UBIZ220
UBIZ220
In Stock
From
$112.86
Zinsco
20
240
UBIZ220B
UBIZ220B
In Stock
From
$77.39
Connecticut Electric
20
240
UBIZ230
UBIZ230
In Stock
From
$106.49
Connecticut Electric
30
240
UBIZ240
UBIZ240
In Stock
From
$120.30
Connecticut Electric
40
240
UBIZ240B
UBIZ240B
In Stock
From
$80.41
Connecticut Electric
40
240
UBIZ250B
UBIZ250B
In Stock
From
$77.91
Connecticut Electric
50
240
UBIZ260
UBIZ260
In Stock
From
$70.21
Connecticut Electric
60
240
UBIZ260B
UBIZ260B
In Stock
From
$78.80
Connecticut Electric
60
240
UBIZ270B
UBIZ270B
In Stock
From
$121.83
Connecticut Electric
70
240
UBIZ280
UBIZ280
In Stock
From
$246.75
Connecticut Electric
80
240
UBIZ280B
UBIZ280B
In Stock
From
$86.44
Connecticut Electric
80
240
UBIZ290B
UBIZ290B
In Stock
From
$209.91
Connecticut Electric
90
240
UBIZ3030
UBIZ3030
In Stock
From
$72.43
Connecticut Electric
30
240
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.